You can make a similar reaction using baking soda and powdered sugar, but it can be difficult. I once tried it and added some Ammonium Nitrate that I got from an instant cold pack (make sure not to get one with urea as it will not work) and it worked, but it was hard to ignite. If you do get it to work, it will be black, not the same colors as the GIF. If you decide to throw caution and cancer to the wind and want to try this particular experiment (I don't know where you would get the mercury (II) thiocyanate, but the Internet is a magical place), then either do it in a fume hood or outside in a VERY well ventilated area and have everyone stand far away and upwind. I don't know the precise byproducts of the reaction, but mercury compounds are almost all very toxic and this experiment spreads them far and wide.